Table 4.
Intraclass correlation coefficient analysis of functional measurements in patients with NSR and AF.
NSR | AF | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
ICC between CSRT2CH_AL and SegSA_Simpson |
ICC between CSRT4CH_AL and SegSA_Simpson |
ICC - CSRT2CH_AL | ICC – CSRT4CH_AL | ICC - Mean | ICC -Maximum | ICC- Minimum | ||||||
Intra | Inter | Intra | Inter | Intra | Inter | Intra | Inter | Intra | Inter | |||
EDV,mL | 0.974 | 0.966 | 0.993 | 0.986 | 0.986 | 0.988 | 0.997 | 0.997 | 0.994 | 0.990 | 0.996 | 0.994 |
ESV,mL | 0.988 | 0.971 | 0.996 | 0.992 | 0.992 | 0.992 | 0.997 | 0.996 | 0.996 | 0.994 | 0.995 | 0.994 |
SV, mL | 0.902 | 0.734 | 0.976 | 0.933 | 0.845 | 0.875 | 0.992 | 0.967 | 0.964 | 0.929 | 0.985 | 0.970 |
EF, % | 0.983 | 0.931 | 0.987 | 0.985 | 0.964 | 0.961 | 0.994 | 0.987 | 0.973 | 0.956 | 0.977 | 0.974 |
LVM, g | 0.953 | 0.948 | 0.990 | 0.967 | 0.975 | 0.964 | 0.986 | 0.977 | 0.976 | 0.956 | 0.975 | 0.964 |
ICC analysis was used to assess the agreements for LV functional quantitative data between CSRT2CH_AL and SegSA_Simpson, and between CSRT4CH_AL and SegSA_Simpson in patients with NSR, and inter- and intra-observer agreements for LV functional quantitative data in patients with NSR and AF.
CSRT2CH_AL, area-length method using two-chamber compressed sensing real time cine; CSRT4CH_AL, area-length method using four-chamber compressed sensing real time cine; SegSA_Simpson, Simpson method using short axis segmented cine; EDV, end-diastolic volume; ESV, end-systolic volume; SV, stroke volume; EF, ejection fraction; LVM, left ventricular mass; NSR, normal sinus rhythm; AF, atrial fibrillation; LV, left ventricular; ICC, intraclass correlation coefficient; Inter, inter-observer; Intra, intra-observer.